View full sizeThe Associated PressTrucks back up outside the Port of Portland's Terminal 6.

Both of the steamship lines that call weekly on the Port of Portland won’t do so until the longshore union dispute is resolved, Port officials said Thursday afternoon.

Managers of Hapag-Lloyd, a German shipping line, rerouted a container ship that had been scheduled in port Thursday or Friday, officials told The Oregonian. The cancellation followed a decision announced Thursday morning by the Hanjin shipping line to suspend vessel calls after a ship dispatched by the South Korean company arrives this Saturday.

“Obviously it’s really upsetting news,” said Sam Ruda, chief commercial officer for the Port of Portland, of Hanjin’s decision. The Hapag-Lloyd cancellations are more bad news, he said.

A dispute between longshore and electricians’ unions over two jobs has snarled cargo across the Northwest, rerouted cargo ships, disrupted operations at other ports and delayed freight shipments for thousands of customers.

U.S. District Judge Michael Simon will hear arguments at 1:30 p.m. Friday in a Portland courtroom by multiple parties in the widening legal disputes related to the standoff.

Hanjin and Hapag-Lloyd are the two main international container shipping lines that call on the port. Another company, Westwood Shipping Lines, calls monthly on Terminal 6. That company’s president was traveling Thursday and unavailable for comment.

Jeff McEwen, Portland manager for Hanjin, said Thursday that vessels will stop coming to Portland after the Hanjin Madrid arrives Saturday. The Hanjin Copenhagen, scheduled to call on Portland June 30, won't be showing up, he said.

The stoppage "will continue until the current situation is remedied," McEwen said.

On Thursday morning, trucks backed up for a mile once again along Portland's North Marine Drive outside Terminal 6.

"My days have gone from 10-to-11 hour days to 14-to-15 hour days," said Justin Wormdahl, a trucker waiting in line. "I could be mowing my lawn."